DATAGRID的OnItemCommand是不是不可以激发模板列？

sasagun 2006-02-28 09:35:31

搞了两天，没搞出来，发了两张贴石沉大海，为什么ImageButton按下去没有反应？
<body MS_POSITIONING="FlowLayout">
<form id="Form1" method="post" runat="server">

<asp:Label id="Label1" runat="server" EnableViewState="False">Label</asp:Label>
 

<asp:DataGrid id="DataGrid1" runat="server" OnItemCommand="ItemsGrid_Command">
<Columns>
<asp:TemplateColumn HeaderText="上移">
<ItemTemplate>
<center>
<asp:ImageButton CommandName="Up" Runat="server" ID="Imagebutton1" ImageUrl="/Adminuser/images/up.gif"></asp:ImageButton>
</center>
</ItemTemplate>
</asp:TemplateColumn>

</Columns>
</asp:DataGrid>
</form>
</body>

后台页
public void ItemsGrid_Command(Object sender, DataGridCommandEventArgs e)
{

switch(e.CommandName)

{

case "Up":
this.Label1.Text="ok";
break;

default:
// Do nothing.
break;

}

}
已经确定，事件肯定有写，因为在后面加上一列：
<asp:ButtonColumn Text="Up" CommandName="Up"></asp:ButtonColumn>
马上就可以了，好象模板列不可以用一样

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sasagun 2006-02-28

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感谢各位的建议，已散分

helloMac 2006-02-28

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1.html
<asp:datagrid id="dGridUSN" runat="server" Font-Size="9pt" Font-Names="Arial" Width="601px" AutoGenerateColumns="False"
PageSize="6" AllowPaging="True" HorizontalAlign="Left" BorderColor="#CCCCCC" BorderStyle="None"
BorderWidth="1px" BackColor="White" CellPadding="1" OnItemCommand="dGridUSN_ItemCommand">
<SelectedItemStyle Font-Bold="True" ForeColor="White" BackColor="#008A8C"></SelectedItemStyle>
<ItemStyle HorizontalAlign="Center" ForeColor="#000066" VerticalAlign="Middle"></ItemStyle>
<HeaderStyle Font-Bold="True" HorizontalAlign="Center" ForeColor="White" VerticalAlign="Middle"
BackColor="#006699"></HeaderStyle>
<FooterStyle ForeColor="#000066" BackColor="White"></FooterStyle>
<Columns>
<asp:TemplateColumn>
<ItemTemplate>

<asp:imageButton id="btntest" runat="server" CommandName="Edit1"></asp:imageButton>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn Visible="False" HeaderText="USN">
<ItemTemplate>

<asp:LinkButton id=lbtnUSN runat="server" ToolTip="Get Model Family Detail" CommandName="Select" Text='<%# DataBinder.Eval(Container, "DataItem.USN") %>'>
</asp:LinkButton>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="Stage" HeaderText="Stage"></asp:BoundColumn>
<asp:TemplateColumn HeaderText="Error Symptom">
<ItemTemplate>

<asp:LinkButton id=lkbtnErr runat="server" Font-Names="Arial" CommandName="Select" Text='<%# DataBinder.Eval(Container, "DataItem.errordesc") %>'>
</asp:LinkButton>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="errorcode" HeaderText="Error Code"></asp:BoundColumn>
<asp:BoundColumn DataField="DefectSeq" HeaderText="Defect Seq"></asp:BoundColumn>
</Columns>
<PagerStyle HorizontalAlign="Left" ForeColor="#000066" BackColor="White" Mode="NumericPages"></PagerStyle>
</asp:datagrid>

2.source code
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not Page.IsPostBack Then
viewUSN()
End If

End Sub

Private Sub viewUSN()
Dim i As Integer
Dim iDefect As Integer
Dim dt As New DataTable
Dim dr As DataRow
Try
Session("ee") = 1
Dim strStage As String = "PO"
'clsDefect = wsBasic.GetUSNDefect("CNV50506LY", strStage)
iDefect = 2
If iDefect >= 0 Then
dt = MakeTable()
For i = 0 To 3
dr = dt.NewRow
dr("stage") = "WE"
dr("ErrorDesc") = "123"
dr("ErrorCode") = "345"
dr("DefectSeq") = 2
'dr("DefectDate") = ""
dr("PassCount") = "5"
dr("WorkStation") = "567"
dr("USN") = "CNV50506LY"
dt.Rows.Add(dr)
Next

Me.dGridUSN.DataSource = dt
Me.dGridUSN.CurrentPageIndex = 0
Me.dGridUSN.DataBind()
Else
End If

Catch ex As Exception
End Try
End Sub
Public Function MakeTable() As DataTable
' Create a new DataTable titled 'Names.'
Dim namesTable As DataTable = New DataTable("Names")
' Add three column objects to the table.

Dim stageColumn As DataColumn = New DataColumn
stageColumn.DataType = System.Type.GetType("System.String")
stageColumn.ColumnName = "stage"
'stageColumn.AutoIncrement = True
namesTable.Columns.Add(stageColumn)

Dim errorDescColumn As DataColumn = New DataColumn
errorDescColumn.DataType = System.Type.GetType("System.String")
errorDescColumn.ColumnName = "ErrorDesc"
namesTable.Columns.Add(errorDescColumn)

Dim errorCodeColumn As DataColumn = New DataColumn
errorCodeColumn.DataType = System.Type.GetType("System.String")
errorCodeColumn.ColumnName = "ErrorCode"
namesTable.Columns.Add(errorCodeColumn)

Dim DefectSeqColumn As DataColumn = New DataColumn
DefectSeqColumn.DataType = System.Type.GetType("System.Int32")
DefectSeqColumn.ColumnName = "DefectSeq"
namesTable.Columns.Add(DefectSeqColumn)

Dim PassCountColumn As DataColumn = New DataColumn
PassCountColumn.DataType = System.Type.GetType("System.String")
PassCountColumn.ColumnName = "PassCount"
namesTable.Columns.Add(PassCountColumn)

Dim WorkStationColumn As DataColumn = New DataColumn
WorkStationColumn.DataType = System.Type.GetType("System.String")
WorkStationColumn.ColumnName = "WorkStation"
namesTable.Columns.Add(WorkStationColumn)

Dim USNColumn As DataColumn = New DataColumn
USNColumn.DataType = System.Type.GetType("System.String")
USNColumn.ColumnName = "USN"
namesTable.Columns.Add(USNColumn)

' Create an array for DataColumn objects.
Dim keys(0) As DataColumn
keys(0) = stageColumn

MakeTable = namesTable

End Function

'Private Sub dGridUSN_ItemCreated(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles dGridUSN.ItemCreated
' If e.Item.ItemType = ListItemType.Pager Then
' e.Item.Cells(0).Controls.Clear()
' Dim lbl As TextBox = New TextBox
' lbl.Text = "Page1"
' Dim lc As LiteralControl = New LiteralControl
' e.Item.Cells(0).Controls.AddAt(0, lbl)
' e.Item.Cells(0).Controls.AddAt(1, lc)
' End If

' 'e.Item.Cells(6).Controls.Clear()
' 'Dim lnk As LinkButton = New LinkButton
' 'lnk = e.Item.Cells(4).Controls(0)
' 'Dim str As String = lnk.Text

'End Sub

Public Sub dGridUSN_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs)
Select Case e.CommandName
Case "test"
MsgBox("test")
Case "test1"
MsgBox("test1")
End Select
End Sub

helloMac 2006-02-28

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我的是VB版的,
你检查你的datagrid绑定，是否在page_load里面，如果在是要加 !Page.IsPostBack判断的

sasagun 2006-02-28

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有哪位可以用的，发个代码给我？

浩方软件HFWMS 2006-02-28

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学习

helloMac 2006-02-28

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我的imagebutton 可以触发，
检查是否 !Page.IsPostBack，但是很奇怪，你的button 又可以触发

sasagun 2006-02-28

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哪位高人写英文啊，有话可以直说啊

sasagun 2006-02-28

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应该是除了图片按钮，其它的都没有问题

sasagun 2006-02-28

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如果是模板列就根本不执行 ItemsGrid_Command()
如果是普通的列就可以执行

蒋晟版主 2006-02-28

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If in your Page_Load event handler you just bind the grid and no checking to see if it was a PostBack condition, then when the Grid is bound, for all those events that
have not fired yet, the grid gets re-bound and the events get discarded.

fayewang 2006-02-28

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自行调试看一看是否有执行了事件....

sasagun 2006-02-28

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加了还不行，急！

fayewang 2006-02-28

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CausesValidation="False"是不需要页验证...

fayewang 2006-02-28

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你在<asp:ImageButton CommandName="Up" Runat="server" ID="Imagebutton1" ImageUrl="/Adminuser/images/up.gif"></asp:ImageButton> 这里面加一个属性CausesValidation="False"试一试.我的里面就多了这个...如果还是不行,看事件是否丢失了.

sasagun 2006-02-28